12122132305 has 16 divisors (see below), whose sum is σ = 14604633360. Its totient is φ = 9659043072.

The previous prime is 12122132293. The next prime is 12122132329. The reversal of 12122132305 is 50323122121.

It can be written as a sum of positive squares in 8 ways, for example, as 5805220864 + 6316911441 = 76192^2 + 79479^2 .

It is a cyclic number.

It is not a de Polignac number, because 12122132305 - 2²⁷ = 11987914577 is a prime.

It is a super-2 number, since 2×12122132305² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2528851 + ... + 2533639.

It is an arithmetic number, because the mean of its divisors is an integer number (912789585).

Almost surely, 2^12122132305 is an apocalyptic number.

It is an amenable number.

12122132305 is a deficient number, since it is larger than the sum of its proper divisors (2482501055).

12122132305 is a wasteful number, since it uses less digits than its factorization.

12122132305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6708.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12122132305 its reverse (50323122121), we get a palindrome (62445254426).

The spelling of 12122132305 in words is "twelve billion, one hundred twenty-two million, one hundred thirty-two thousand, three hundred five".